use combined srcs

panda/src/pnmimage/Sources.pp

@@ -6,12 +6,17 @@
   #define LOCAL_LIBS \
     pnm linmath putil express
 
+  #define COMBINED_SOURCES $[TARGET]_composite1.cxx $[TARGET]_composite2.cxx 
+
   #define SOURCES \
-    config_pnmimage.cxx config_pnmimage.h pnm-image-filter.cxx \
-    pnmFileType.cxx pnmFileType.h pnmFileTypeRegistry.cxx \
-    pnmFileTypeRegistry.h pnmImage.I pnmImage.cxx pnmImage.h \
-    pnmImageHeader.I pnmImageHeader.cxx pnmImageHeader.h pnmReader.I \
-    pnmReader.cxx pnmReader.h pnmWriter.I pnmWriter.cxx pnmWriter.h
+     config_pnmimage.h pnmFileType.h pnmFileTypeRegistry.h pnmImage.I  \
+     pnmImage.h pnmImageHeader.I pnmImageHeader.h pnmReader.I  \
+     pnmReader.h pnmWriter.I pnmWriter.h  
+
+  #define INCLUDED_SOURCES \
+     config_pnmimage.cxx pnm-image-filter.cxx pnmFileType.cxx  \
+     pnmFileTypeRegistry.cxx pnmImage.cxx pnmImageHeader.cxx  \
+     pnmReader.cxx pnmWriter.cxx 
 
   #define INSTALL_HEADERS \
     config_pnmimage.h pnmFileType.h pnmFileTypeRegistry.h pnmImage.I \

panda/src/pnmimage/pnmimage_composite1.cxx

@@ -0,0 +1,5 @@
+
+#include "config_pnmimage.cxx"
+#include "pnm-image-filter.cxx"
+#include "pnmFileType.cxx"
+

panda/src/pnmimage/pnmimage_composite2.cxx

@@ -0,0 +1,6 @@
+
+#include "pnmImage.cxx"
+#include "pnmImageHeader.cxx"
+#include "pnmReader.cxx"
+#include "pnmWriter.cxx"
+#include "pnmFileTypeRegistry.cxx"